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J. WALKER & C. FISCHER.

ACCELERATOR FOR INTERNAL COMBUSTION ENGINES.

APPLICATION FILED 001230, 1915. 1 1 93,640. Patented Aug. 8, 1916. v I 2 SHEETSSHEET hwenfors JOZZQ aa/ker 5 I can Escher iii 241% J WALKER & C. FISCHER. ACCELERATOR FOR INTERNAL COMBUSTION ENGINES. APPLICATION FILED OCT. 30. 1915.

1 1 93,649., Patented Aug. 8, 1916.

2 SHEETS-SHEET 2.

r W 1 2L my clare the following to be a full, clear, and

an snares. earn JOHN WALKER AND can]; FISCHER, on GRAND RAPIDS, MICHIGAN; SAID WALKER ASSIGNOR T0 JOSEPH F. KENNEDY, or GRAND RAPIDS, MICHIGAN.

ACCELERATOR FOR INTERNAIi-CO'MBUSTION ENGINES.

T 0 all whom it may concern Be it known that we, JOHN WALKER and CARL FISCHER, citizens of the United States of America, residing at Grand Rapids, 1n the county of Kent and State of Michigan, have invented certain new and useful Improvements in Accelerators for Internal- Gombustion Engines; and we do hereby deexaet description of the invention, such as will enable others skilled in the 'art to'which it appertains to make and use the same.

. This invention relates to accelerators especially adapted to be applied'to internal combustion engines and automobiles of the .Ford type. In automobiles of this character the foot boards of the front compartment are loose and readily removable for access to the transmission and it is desirable that said boards remain free for ready removal. I

A primary object and'purpose of our 1nvention is to provide an accelerator which may be supported directly and wholly from the engine, there beingno connection with the dash or any of the removable foot boards so as to interfere with their ready removal when desired.

Other ob ects and purposes consist in various novel. features of construction and operation whereby the accelerator may be readily assembled and associated with the view showing the various elements .of the" accelerator in assembled relation; and Fig. 4 is a detail in'perspective of plate of the accelerator.

Like reference characters refer to like parts throughout the several views of the drawings.

The engine is shown at 1 and, as is common in Ford engines, is equipped with the usual head plate 2 which is secured to the body of the engine by head bolts 3, a plu- Specification of Letters Patent.

the throttle Patented Aug. 8, 191,6.

Application filed October 30, 1915. Serial No. 58,839.

rality of which are indicated in Fig. 2. The

manifold for carrying the carbureted gas I steering wheel not shown in the present dis- Y closure.

In our resent invention a throttle plate 10 of the orm shown in Fig. 4 is used which is provided with two downwardly extending pins 11 adapted to lie one on either sidev of the lever 6 and with an opening 12 through which a bolt 12*, or other suitable connection, is passed to secure the plate to the lever 6. The plate also has attached thereto an upwardly extending pin 13 and at theen'd of the plate opposite the opening 12 a small opening 14 is formed. A slotted link 15 is suitably secured to the end of the rod 7 heretofore described, the pin 13 seating loosely in the slot and being secured so that the link cannot disengage with the pin, as shown in Fig. 2.

A rod 16 has its forward end 16" turned down and passed through the opening 14 in the plate 10, Said rod extends rearwardly and is attachednt its rear end to an arm, 17. A coil spring 18,, is also attached toarm 17 and is secured at its rear end to any suitable permanent support, the tendency of thLspring being to pullthe arm 17 to the rear and hold the plate 10 and its attached lever 6 in position whereby the supply of fuel to the engine is cut down to a minimum. At its upper end the arm 17 is secured to a rock shaft 19 pivotally mounted in two brackets 20 and 21 which extend upwardly and forwardly over the rear end of the head plate 2 and are adapted to receive the rearmost securing head bolts 3 which when screwed inwardly to attach the head plate to the body of the engine serve also to hold the brackets 20 and 21 securely in position. A pedal 22 terminating in a foot rest 23 is connected to the rock shaft 19, said pedal extending upwardly through a slot in the foot board 24 of the front coinpartment of the'automobile being thereafter turned to the rear as shown in Figs. 1 and 3. By reason of the formation and location of the engine with respect to the foot board in Ford automobiles it is advisable to give the rock shaft a downward bend as shown at 19 closely adjacent the supporting bracket 20. We may if it is thought advisable, cast integrally with the bracket 20 an extension 20 having integral. therewith a forwardly extending finger 25 adapted to bear against the rear of the head plate 2. This will serve to automatically position and strengthen the bracket 20 properly when it is located with a head bolt 3 passed therethrough and turned to position so that the finger 25 strikes against the head of the engine. When soused the bracket 21 may not be necessary.

With this construction it will be noted that the usual hand throttle operated through the rod 9-, arm 8 and cross rod 7 is still available and may be actuated in the usual manner. For accelerating the engine momentarily, pressure of the foot is applied to the pedal 22 thereby actuating the rock shaft 19 and carrying rod 16 forward, this serving to. turn the lever 6 for admission of a greater quantity of fuel to the engine.

\Vhen this takes lace the pin 13 moves in the slot of the lin 15 and as soon as pressure on the pedal 22 is released the spring 18 draws the parts back to normal position or to the position which they occupied before the accelerator was used.

Various slight modifications in detail may be resorted to without departing from the invention which is defined in the appended claims, all modifications in structure falling within the scope of said claims being comprehended by our invention.

What we claim is 1. Foot controlled accelerating means for internal combustion engines embodying in combination with the engine and carbureter, a rock shaft, bearings for said shaft fastened directly to the body of the engine, a

foot lever fast on said shaft, an arm on said shaft, a throttle plate attached to and movable with the throttle lever of the carbureter, a link connecting said throttle plate with the arm of the rock shaft, a stud on said plate, and a link rod controlled at one end by the hand throttle lever and slotted at its other end to receive said stud on the throttle a rock' shaft, bearings for said shaft fastened directly to the body of the engine, a foot lever fast on said shaft, an arm on said shaft, a throttle plate attached to and movable with the throttle lever of the carbureter, a 'link connecting said throttle plate with the arm of the rock shaft, a stud on said plate, a. link rod controlled at one end by the hand throttlelever and-slotted at its other end to receive said stud on the throttle plate, whereby the foot accelerating means may be operated without afiecting the hand throttle lever, and means for yieldingly holding said rock shaft and foot lever in non-accelerating position. e

3. Foot controlled accelerating means for internal combustion engines embodying in combination with the engine and carbureter, a throttle lever on the carbureter, a throttle member attached to and movable with said lever, a stud on the t rottle member, a link rod slotted at one en to receive said stud, hand operated means to move the link rod and thereby actuate the throttle member and attached lever, and foot operated means mounted solely on the engine connected to said plate for operating it and the attached throttle lever without affecting the hand op- .nal combustion engines comprised of a rock shaft, a bearing for said shaft, adapted to be secured to the body of the engine, a member adapted to be attached to the throttle lever of the engine carbureter, means to impart rotation to the rock shaft attached solely to said shaft, connections between said member and rock shaft for moving the member on rotation of the shaft, a stud on said member and a link member slotted at one end to slidably receive said stud, said link member being adapted for attachment to a separate carbureter control, substantially as described.

In testimony whereof we affix our signatures. 1

JOHN WVALKER. CARL FISCHER.

copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington.D. C. a

It is hereby certified theta in Letters Patent No. 1,193,640, grentedAugust 8, 1916, upon the application of John Walker and Qeirl Fischer, of'Grend Rapids, Michigan, Accelerators for internal-Combustion Engines, an error for an improvement in ficetion requiring Correction as follows: Page 2, after line appears in the printed speei 106 insert as claim 5 the following: I

5. Foot-eontrolled accelerating means for internal combustion engines embodying in combination with the engine and earbnreter, a rock shaft, a bearing for said shaft fastened directly to the body of the engine, a foot lever extending from said rock shaft,

alever forming an element of the carhareter, a link interposed between and having operative connection to the lower end/3f the arm and to said lever, a link rod controlled at one end by a hand throttle lever a the slotted end of said link rod and the carbnreter lever permitting movement of the said lever in one direction without affecting the hand-control, substantially. as described; and that the said Letters Patent should he read with this correction therein that the same may conform to the record ef the case in the Patent Qtfioe.

Signed and; sealed this 5th day of September, A. D., 1916.

- [seen] F. W: H. CLAY,

Acting Commissioner of Patents.

slotted at its other end, and connections between 

